Unfertilized eggs of several animal species contain many mrnas that should not be translated until fertilization occurs. describe a molecular strategy employed by the egg to ensure timely activity of the proteins encoded by such mrna.

Unfertilized eggs are arrested in pachytene of prophase I in meiosis. This arrest must be relieved before fertilization to enable the mitotic divisions. Exposure to some hormones and/or other proteins outcomes in breakdown of nuclear envelope enabling the meiosis to continue from prophase I. Furthermore, those proteins activate some posttranscriptional modifications of mRNA, such as polyadenylation, permitting the translation of the mRNA.

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

mark as brainlest

gokuson

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.